3474879 - Down payment clearing line is not created in contract based down payments

As of release SAP S/4HANA 2021 , functionality SAP Best Practice "I9I-Quantity Contract based down payments" has been introduced which is also mentioned in portal Down Payment Processing for Sales Contracts | SAP Help Portal. Customer has done the configuration referring to portal Down Payment Processing for Sales Contracts | SAP Help Portal, but the down payment clearing item is not created in final invoice.

As of SAP S/4HANA 2021

Quantity Contract, value contract, down payment, clearing, SAP Best Practice,Quantity Contract based down payments, Billing Plan, final invoice, down payment request. , KBA , SD-BIL-IV-DP , Down Payments , SD-SLS-OA-CCO , Customer Contracts , Problem